3 series chevy positract. for 12 bolt
 

I'm looking for a late 60's or early 70's 3 series positract carrier to use in my 69 Nova.If anyone has one I'd be willing to swap out a 4 series unit that I have now. I'm going with a 3.08 ring and pinion so it won't work with what I have now. This is just going to be a cruise car so I wanted a low numerical number in it. thanks for any help. Bill Bogues.